Mobile Crossword puzzle app

I’m looking to develop a crossword puzzle app. Looks pretty much like any other crossword app except that each word has THREE clues (Harder, Medium and Easier). When a clue has been viewed by the solver, the background “fill” of the word’s squares show which clue has been viewed... (Budget: $5000 - $10000 AUD, Jobs: Android, App Design, App Development, Game Design, Game Development, iOS, Mobile App Development, UI / User Interface)